:xoutpost:
Many members have fitted the complete 4.6is/4.8is body kits. Do a search on this. You will find more than enough info. The best place to purchase the kit is from Morristown BMW. They seem to have the best pricing, especially for x5world members. S/B about $700 (less fender flares) and you will need to get the spoilers painted. Installation can be a DIY if your up for it (or you'll need to find a body shop, so factor in labor costs). After that you'll want to have 20's to complete the look. The entire transformation can be costly but worth it if that's what you want. Ask for a quote in the Morristown BMW forum here on x5world:
http://www.xoutpost.com/accessories-f...oiler-kit.html
Good luck with the mods